6564903441 has 4 divisors (see below), whose sum is σ = 8753204592. Its totient is φ = 4376602292.

The previous prime is 6564903437. The next prime is 6564903461. The reversal of 6564903441 is 1443094656.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 6564903441 - 2² = 6564903437 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 6564903393 and 6564903402.

It is not an unprimeable number, because it can be changed into a prime (6564903461) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1094150571 + ... + 1094150576.

It is an arithmetic number, because the mean of its divisors is an integer number (2188301148).

Almost surely, 2^6564903441 is an apocalyptic number.

It is an amenable number.

6564903441 is a deficient number, since it is larger than the sum of its proper divisors (2188301151).

6564903441 is a wasteful number, since it uses less digits than its factorization.

6564903441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2188301150.

The product of its (nonzero) digits is 311040, while the sum is 42.

The square root of 6564903441 is about 81024.0917320275. The cubic root of 6564903441 is about 1872.4466284372.

The spelling of 6564903441 in words is "six billion, five hundred sixty-four million, nine hundred three thousand, four hundred forty-one".